This calculator outputs the how fast the Chevrolet Corvette can go in each gear as calculated by the gear ratios, engine redline and tire size.
The ultimate top speed may be limted by the power, drag and aerodynamics of each individual car.

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Tire Size(345/30/20)

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OR

Tire Diameter(inches)

Final Drive Ratio

Redline (RPM)

1st Gear

2nd Gear

3rd Gear

4th Gear

5th Gear

6th Gear

7th Gear

8th Gear

RPM

1st Gear

2nd Gear

3rd Gear

4th Gear

5th Gear

6th Gear

7th Gear

8th Gear

500

4.39

6.56

8.98

11.68

15.78

23.36

0

0

600

5.27

7.87

10.78

14.02

18.94

28.03

0

0

700

6.15

9.19

12.58

16.35

22.1

32.7

0

0

800

7.03

10.5

14.38

18.69

25.25

37.38

0

0

900

7.9

11.81

16.17

21.02

28.41

42.05

0

0

1000

8.78

13.12

17.97

23.36

31.57

46.72

0

0

1100

9.66

14.44

19.77

25.7

34.72

51.39

0

0

1200

10.54

15.75

21.56

28.03

37.88

56.06

0

0

1300

11.42

17.06

23.36

30.37

41.04

60.74

0

0

1400

12.29

18.37

25.16

32.7

44.19

65.41

0

0

1500

13.17

19.69

26.95

35.04

47.35

70.08

0

0

1600

14.05

21

28.75

37.38

50.51

74.75

0

0

1700

14.93

22.31

30.55

39.71

53.67

79.42

0

0

1800

15.81

23.62

32.34

42.05

56.82

84.1

0

0

1900

16.69

24.93

34.14

44.38

59.98

88.77

0

0

2000

17.56

26.25

35.94

46.72

63.14

93.44

0

0

2100

18.44

27.56

37.74

49.06

66.29

98.11

0

0

2200

19.32

28.87

39.53

51.39

69.45

102.78

0

0

2300

20.2

30.18

41.33

53.73

72.61

107.46

0

0

2400

21.08

31.5

43.13

56.06

75.76

112.13

0

0

2500

21.95

32.81

44.92

58.4

78.92

116.8

0

0

2600

22.83

34.12

46.72

60.74

82.08

121.47

0

0

2700

23.71

35.43

48.52

63.07

85.23

126.14

0

0

2800

24.59

36.75

50.31

65.41

88.39

130.82

0

0

2900

25.47

38.06

52.11

67.74

91.55

135.49

0

0

3000

26.35

39.37

53.91

70.08

94.7

140.16

0

0

3100

27.22

40.68

55.7

72.42

97.86

144.83

0

0

3200

28.1

42

57.5

74.75

101.02

149.5

0

0

3300

28.98

43.31

59.3

77.09

104.17

154.18

0

0

3400

29.86

44.62

61.1

79.42

107.33

158.85

0

0

3500

30.74

45.93

62.89

81.76

110.49

163.52

0

0

3600

31.62

47.25

64.69

84.1

113.64

168.19

0

0

3700

32.49

48.56

66.49

86.43

116.8

172.86

0

0

3800

33.37

49.87

68.28

88.77

119.96

177.54

0

0

3900

34.25

51.18

70.08

91.1

123.11

182.21

0

0

4000

35.13

52.49

71.88

93.44

126.27

186.88

0

0

4100

36.01

53.81

73.67

95.78

129.43

191.55

0

0

4200

36.88

55.12

75.47

98.11

132.58

196.22

0

0

4300

37.76

56.43

77.27

100.45

135.74

200.9

0

0

4400

38.64

57.74

79.06

102.78

138.9

205.57

0

0

4500

39.52

59.06

80.86

105.12

142.05

210.24

0

0

4600

40.4

60.37

82.66

107.46

145.21

214.91

0

0

4700

41.28

61.68

84.46

109.79

148.37

219.58

0

0

4800

42.15

62.99

86.25

112.13

151.52

224.26

0

0

4900

43.03

64.31

88.05

114.46

154.68

228.93

0

0

5000

43.91

65.62

89.85

116.8

157.84

233.6

0

0

5100

44.79

66.93

91.64

119.14

161

238.27

0

0

5200

45.67

68.24

93.44

121.47

164.15

242.94

0

0

5300

46.54

69.56

95.24

123.81

167.31

247.62

0

0

5400

47.42

70.87

97.03

126.14

170.47

252.29

0

0

5500

48.3

72.18

98.83

128.48

173.62

256.96

0

0

5600

49.18

73.49

100.63

130.82

176.78

261.63

0

0

5700

50.06

74.8

102.42

133.15

179.94

266.3

0

0

5800

50.94

76.12

104.22

135.49

183.09

270.98

0

0

5900

51.81

77.43

106.02

137.82

186.25

275.65

0

0

6000

52.69

78.74

107.82

140.16

189.41

280.32

0

0

6100

53.57

80.05

109.61

142.5

192.56

284.99

0

0

6200

54.45

81.37

111.41

144.83

195.72

289.66

0

0

6300

55.33

82.68

113.21

147.17

198.88

294.34

0

0

6400

56.2

83.99

115

149.5

202.03

299.01

0

0

6500

57.08

85.3

116.8

151.84

205.19

303.68

0

0

6600

57.96

86.62

118.6

154.18

208.35

308.35

0

0

6700

58.84

87.93

120.39

156.51

211.5

313.02

0

0

6800

59.72

89.24

122.19

158.85

214.66

317.7

0

0

6900

60.6

90.55

123.99

161.18

217.82

322.37

0

0

7000

61.47

91.87

125.79

163.52

220.97

327.04

0

0

RPM

1st Gear

2nd Gear

3rd Gear

4th Gear

5th Gear

6th Gear

7th Gear

8th Gear

Some additional information on how these are calculated:

When D is the diameter of the tire, the car moves forward a distance πD with each revolution of the tire. If there are F revolutions per unit of time, it moves forward at a speed of πD´F per unit of time. If D is in inches and F is in revolutions per minute (rpm), the above result will be in inches per minute. There are 63,360 inches in a mile and 60 minutes in an hour, so one inch per minute equals 60/63360 miles per hour or 1/1056 mph. So we have the following formula:

V(mph) = D(in) ´ F(rpm) ´ (π/1056)

In the automotive industry, the coefficient 1056/π is usually taken to be equal to 336 (exactly it is 336.1352398...) and the formula corresponding to the above is:

(mph)(gear ratio)(336) = (tire diameter in inches)(rpm)

With the above numerical approximation, both formulas are identical if we consider that (rpm)/(gear ratio) is the rate of rotation of the tires. So the "gear ratio" as the number of rotations of the driveshaft for each turn of the tire. This ratio is normally more than 1, except in overdrive gear. So, calling R the "gear ratio", your final answer is:

V(mph) = D(in) ´ F(rpm) ´ (π/1056) / R

or, approximately: V = (D ´ F) / (336 ´ R)

where V is the velocity (in mph), D the tire diameter (in inches), F the engine rpm, and R the gear ratio.